Tailings-deflector for coal-breakers



J. L. HIL LER. TAILINGS DEFLECTOR FOR COAL BREAKERS.

APPLICATION FILED NOY. 6.1916.

Patented Nov. 25, 1919.

3 SHEETSSHEET 1.

oboooooooooo oooooooooooo ooooooooooooo OOOOOOOOOOOO r. L. HIXLLER. TAILlNG-S DEFLECTOR FOR COAL BREAKERS.

APPLICATION FILED NOV. 6. i916.

Patented Nov. 25, 1919.

3 SHEETSSHEET 2.

1. L. HILLER.

TAILINGS DEFLECTOR FOR COAL BREAKERS.

APPLICATION FILED NOV. 6, 19w.

1,322,568. I Patented Nov. 25, 1919.

3 SHEETSSHEET 3- 26 FyJO. 23 I 2'6 @IZ I 23 17 w 12 26 Jeflvl JOSEPH L. KILLER, or marmro sm'r, MASSACHUSETTS.

rammes-nnrmcron. on. COAL-BREAKERS.

To all whom it may concern:

Be it known that I, JOSEPH L. HIIJLER, a citizen of the United States, residing in Mattapoisett, Plymouth county, State of.

v eign material and impurities mixed with good coal, and include relatively small quantities of over-size tailings, to those of a comparatively friable nature which contain considerable amounts of impurities and should properly have separated from them a comparatively large amount of ta lings.

A further object of the invention is to provide a novel form and arrangement of tailings deflector designed to cooperate with the tailings plow or plows of a coal breaker, with a view to governing the time during which material is retained in the machine, as well as to controlling the rate of discharge of the tailings by the plow.

Another object of the invention is to provide novel means for rotata bly mounting the drum of a coal breaker with a view to making possible the convenient ad ust'ment of the angle of inclination of its axis the horizontal ;the' invention contemplating a novel bearing structure with its cooperatingparts for rendering possible this ad ustment.

These objects and other advantageous ends I se'cure as hereinafter set forth, reference being had to the accompanying drawings, in which,

Figure 1 is a vertical longitudinal section of a coal breaker "embodying my invention;

Fig. 2 is a transverse vertical section on the line 22, Fig. 1;

Fig. 3 is an enlarged vertical section of one of the bearing structures;

Fig. 4 is a perspective view of part of the bearing structure, illustrating the arrangement of the adjusting blocks;

Fig. 5 is a perspective view of the tailings deflector forming part of my invention;

Fig. 6 is an elevation on a reduced scale Specification of Letters Patent.

Application filed November 6, 1916. Serial No. 129,793.

illustrating the breaker with its associated driving mechanism Fig. 7 is a fragmentary elevation illustrating a special form of 'bearin block;

Fig. 8 is a plan of one of the earing adjusting shims or blocks; and

Figs. 9, 10, 11 and 12 are-side elevations of a of bearing blocks constituting part of my invention. In the above drawings 12 represen supporting standards for the opposite ends of the machine and these are respectively connected by substantially horizontal members in the form of girders 3 and 4, from the latter of which is suspended a bearing structure 5 consisting of a yoke member 6 held up by bolt 7 and internally formed to provide a supporting socket for a spherical bearing 8 in which is mounted a short shaft 9. Similarly'the girder 3, at the opposite end of the machine has suspended from it a yoke 10 carried by four bolts 11 and formed to receive a spherical bearing 12 in which is rotatablymounted a second short shaft 13. These two shafts 9 and 13 are respectively fixed to vthe spiders of annular head structures 14 and 15 which are rigidly connected by a series of parallel structural sections 16 outlining a cylindrical drum.

The head structure 14 has fixed to it concentrically with the shaft 9 a spur gear 17 and the frame members 16 serve to support a cylindrical screen structure 18 made of perforated metal plates suitably bolted or otherwise fixed in place to constitute a screen drum.

Vithin the drum are mounted any suitable number of lifting shelves 19 in the form of suitably braced plates bolted to and extending inwardly from the surface of the screen drum and running from one to the other of the heads 14 and 15. A delivery trough or conduit 20 is mounted to deliver material to be broken into the head 14 and any suitable number of plows 21 are arranged to collect and discharge tailings from the opposite end of the drum ;there bottom plate 22 of the girder 3, and the top surface of the yoke 10, a pair of shims or adjusting blocks 23, each consisting of a metal body of rectangular or wedge shaped section having recesses or slots 24 projecting into it from one side to permit of its passage by the bolts 11 and also provided with' handles 25 to permit of convenient manipu-' lation. Where the blocks or shims are of rectangular section, the inner edges of one face are preferably provided with a rib 26 designed to fit into acorrespondingly formed groove in the top of the yoke member 10 so as to prevent their accidental displacement, and the inner edge of the opposite face of each block is recessed so as to be capable of receiving the rib of another block in case it should be desired to use two instead of one pair of blocks.

If blocks of wedge shaped section are employed as illustrated in Fig. 7, the top of the yoke structure 10 has mounted on 1t blocks 23 on which are placed wedge blocks 28 inclined in opposite directions. Coacting adjustable wedge blocks 23. are then mounted on said blocks 23 and any suitable means, such as the bolts 50 threaded through theends of the adjustable blocks, may be employed for shifting their pos tions. By this-means the amount of inclination to the horizontal of the axis of the screen drum may be varied between any desired limits, for if it be found that a small number of adjustments each varying by a definite amount from the other, will fulfil the operating requirements of the machine, a set of blocks or shims of rectangular section and progressively varying th1c lmess may be employed as illustrated 1n Figs. 9 to 12 inclusive.

On the other hand, if comparatively. fine adjustments are required, within comparatively narrow limits, I may employ wedge blocks such as those shown at 23 and 23, Fig. 7, and may obviously make any desired combination of these with the blocks of rectangular section, in order to obtain any required inclination of the screen drum with a consequent variation in the time of passage of material therethrough.

The employment of a breaker having an inclined screen drum and lifting shelves, renders. possible the doing away with the conveying deflectors or plates hitherto considered necessary in machines of this type, and in order to suit such an inclined drum machine to the treatment of various grades of material, I provide a device whereby it is possible to regulate the time the material remains under treatment within said drum before it has been reduced to a fineness sufficient to permit it to pass through the perforations thereof. For this purpose I mount within the drum, adjacent each of the plows 21, a tailings deflector 27 so constructed that it may be adjusted from a position in which 'of the screen drum and primarily held in place by a pivot bolt 28. To one side of said bolt said plate is laterally extended to provide a'clamping face in engagement with the inner surface of the screen drum and in this extension there is a slot 29 concentric with said bolt 28, for the reception of a clamping bolt 30 which is suitably mounted in the screen structure or in its supporting frame. The opposite end of the deflector 27 is provided with a pair of perforated lugs 31 for the reception of bolts passing through and clamped to the screen drum structure, for holding the deflector in any adjusted position.

When therefore, the machine is employed 'to operate on coal which is hard and difficult to break and in which there is but a small proportion of foreign material and impurities mixed with the good coal, I set the deflector in or adjacent the position indicated in dotted lines in Fig. 1, so thatit engages the greater part of the material otherwise entering the adjacent plow and returns it to the drum and to the shelves .thereof. As a consequence it will be further broken by being rapidly raised and dropped before it again engages said deflector, and ultimately such foreign material or impurities as are not broken by this treatment find their way past the deflectors and are discharged by the plows.

When on the other hand the coal handled is comparatively friable and contains a considerable amount of impurities, it is well broken in the first part of the drum and caused to escape through the perforations therein before it reaches the discharge end thereof. In such a case the deflectors may be set at or adjacent the positions shown in Fig. 1, so as to discharge directly into the plows practically all of the material engaged y them. Obviously the deflectors may be set at any position intermediate thetwo extreme positions indicated, to cause the machine to satisfactorily operate on any particular rade of coal.

It Wlll be noted that in coal breakers hitherto constructed with screen drums roaxis of the screen drum but also upon the adjustment of the tailings deflector, resulting not only in an improved operation but materially reducing the cost and complexity of the machine as well as very considerably lessening the labor of making an adjustment necessary to secure a desired result.

.In order to actuate the drum I provide a counter shaft 35having a driving pulley 36 and a pinion 37 meshing with the gear 17 of the drum. This shaft is carried in suitable supporting bearings 8 and 12*" preferably similar to those for the shafts 9 and 13 and v has a set of adjusting blocks 23 (Figs. 9- to 12) insertible between that one of these bearings adjacent the discharge end of the drum and its cooperating supporting structure, whereby, as the inclination of the drum axis is varied, the inclination of said counter shaft and its pinion will likewise be adjusted. a

I claim 1. The combination in a coal breaker of a drum; means for rotatably supporting said drum; a pivot bolt projecting inwardly from the inner surface of the drum; a tailings deflector adjustably mounted on said pivot bolt and consisting of a plate having an inwardly extending body formed with opposite lateral extensions, the edge of the plate adjacent the drum being curved to approximately conform to the curvature thereof, and the body and lateral extensions of the plate having a slot therein concentric with the pivot; with a bolt in said slot for retaining the plate in any adjusted position.

deflector being adjustable at will to com-' pletely prevent entrance of material to the plow.

JOSEPH L. HILLER. 

